Detachable coupling



Nov. 2, 1943. w M GLAB 2,333,243

DETACHABLE COUPLING Filed Dec. 7, 1942 2 Sheets-Sheet 1 I 1 L3 2 0 9 H r-LVEnZQZ MAL/AM /V. @448.

Nov. 2, 1943.

w. N. GLAB 2,333,243

DETACHABLE COUPLING Filed Dec. 7, 1942 2 Sheets-Sheet 2 Fm M1. LIAM IV. 62 48.

Patented Nov. 2, 1943 DETACHABLE COWLI G William N. Glab, Dubuque, Iowa, assignor to Morrison Brothers Company, Dubuque, Iowa, a

corporation of Iowa Application December '7, 1942, ,Serial hloi 468,039

3 Claims.

This invention relates to quick attachable and detachable couplings for use between hose and pipe lines or between a hose or pipe line and a tank. The improved coupling is of substantial metallic construction, adaptable for rough usage to provide a quick detachable annular sealing joint between a tank adaptor and a hose nipple or betweentwo hose nipples, betweenwhich a flow of liquid or fluid is to be established. The improved coupling is designed and constructedto provide an improved and quick connection between pipes, hoses and the like for the convenient transmission of liquids and more particularly for the transmission of hot oils and the like from a source of supply to a distributing tank or line.

It has been found, in the conducting of hot oil and the like from one pipe to another, that it is highly desirable to provide aneflicient coupling that may be operated to quickly attach and detach pipe adaptors, and one in which the .attached couplingmaydraw the adaptors together to providev a tight leak-proof joint. These results are accomplished in this. invention by means of a rotatable gland having adjustable engagement witha coupling body to bring the joint surfaces of the coupled members into sealling contact.

It is an object of this invention to provide an improved and sturdy type of quick attachable and detachable coupling wherein the coupling body has telescopically engaged therewith a rotatable gland unit which is longitudinally and rotatably adjustable ona hose or pipe nipple to move a joint contact surface into sealing engagement with an adjacent joint contact surface of a faucet or pipe adaptor engaged in the coupling body to be drawn into a tight seal with the nipple.

It is also an object of this invention to provide an improved type of quick attachable and detachable hose or pipe coupling, including rotatably and longitudinally adjustable coupling members engaging adjacent ends of pipe nipples or adaptors to draw the same together into-tight sealing engagement.

It is furthermore an object of this invention to provide an improved quick attachable and detachable coupling for use in the connection of pipe nipples, adaptors and the like, said coupling including rotatably and longitudinally in- .terfitting members movably mounted on a hose or pipe nipple for releasably receiving a faucet or pipe adaptor to draw the sameinto annular sealing contact with the nipple.

Another ob ect of the'invention is to provide a hose or pipe coupling unit which is slidably engaged between a flange and a lockingring of a hose or pipe adaptor .or nipple on which a handle operated gland, forming a part of the coupling unit, is 'rotatably and adjustably engaged with the coupling unit body to move the same longitudinally thereon to bring a faucet or p pe adaptor jre easabl en ag d here n tight sealing contact with the pipe adaptor or nipple. I

Still another objectof the invention is to provide an improved and s mpl fied ty o effece quick atta ha l a d d ta hable p 00. pl e ns stin of ..r tatab y .ipterfi coupling members forengaging and sealingly drawing aligned pipe members together.

S l n th object of the in en o i to provide an improved and simplified sturdy type of ip poup wh inapa of p pe n pples a e parated by a mu iple t p adap with eac o aid n pp havi a qu c at achable and detachable couplin u it adiu ab moun ed thereon and engaged over an end of the multiple e a orfo d aw n the nipples into tight sealing engagement with the ends of the multiple ype adapto .by a i t bl l n ea s formi pa tso t o in um It is an important object of. this invention to pr vid an impro ed n mp ifi d pe .of sturdy attachable and detachable coupling wherein a coupling body engaged on a pipe or hose nipple is adapted to removably receive a faucet or pipe adaptor to cause the same to drawn into tight sealing engagement with the pipe or hose nipple by means of a handle op erated coupling gland engaged on the nipple and having rotatable telescoping engagement with t up i bo Other and further importantebjects of this invention will be apparent frgm' the disclosures in the specification and the accompanying drawings.

0n the drawings:

Figure 1 is an elevational view of a quick attachable and detachable type of coupling unit embodying the principles of this invention and engaged on a nipple connected to-a hose or pipe by means of an adaptor.

Figure 2 is an elevational View of a faucet or pipe adaptor with its closure cap in position, said adaptor being adaptable for projection into the coupling, when the cap is removed.

'Figure 3 is' a, longitudinal sectional 'view of the adaptor and cap, with parts shown in elevation.

Figure 4 is a longitudinal sectional view through the coupling and the nipple and showing the. adaptor engaged inthe coupling in sealing contact with the hose or pipe'ni-pple.

Figure 5 is an elevational view looking at the mounting end of the faucet adaptor and the open end of the adaptor cap.

Figure-'6 is a. fragmentary detailed sectional view taken on line VI VI-of Figure 3 to show onoof the mental p ie tions or ton es and the groove beneath .the'sa neior receiving a cor- Figur 8 is a longitudinal sectional view, with parts in elevation, of a modified form of a faucet or pipe adaptor with a modified form of closure cap engaged thereon.

Figure 9 is a part elevational and part sectional view of a modified form of coupling coacting with modified forms of pipe nipples and adaptors provided with beveled contact sealin surfaces. .7

Figure 10 is a longitudinal sectional view of a modified formof couplin mechanism consisting of two coupling units for bringingthe flange ends of pipe nipples into sealing surface contact with the opposite nds of a double adaptor.

As shown on the drawings:

Referring to Figures 1 to '7 inclusive, the reference numeral I indicates a metallic hose or pipe having connected thereto by means of an internally threaded adaptor 2, the exteriorly threaded end 3 of a pipe adaptor or nipple 4 which is in the form ofa metal pipe section having an annular flange 5 integrally formed on one end thereof The pipe adaptor or nipple 4 is provided with an annular exterior groove at 6' for receiving a split spring lock or stop ring I engaged therein. to provide astop for one of the members of the coupling unit as hereinafter more fully described. I

Rotatably. and adjustably engaged on the pipe adaptor or nipple 4 between the flange 5 and the spring lock ring'l'is a quick detachable and attachable coupling unit. The coupling unit comprises an adjustable gland comprising a cylindrical sleeve 8 having an exteriorly threaded portion 9. The threaded sleeve'8 is slidably and rotatably mounted. on the nipple 4 between the flange 5 and the lock ring I, as illustrated in Figure 4. Integrally formed on the outer end of the gland sleeve 8 is an annular head or stop flange I having integrallyfformed radially thereon a pair of oppositely directed arms or handles I I to facilitate rotation of the gland in a coupling operation.- Asshown in Figure 4, the inner end of the gland; sleeve 8 is positioned to contact one side of the nipple flange to force an outer joint contact surface I2 of th nipple flange 5 outwardly.

Cooperating with the coupling gland isa coupling bodylil having integrally formed on one end thereof a coupling body sleeve. which is internally threaded at I5 and has threaded ngagement with the exteriorly threaded portion 9 of the gland sleeve'8. The outer end of-the coupling body I3 includes an inner peripheral roove I6 to the inside of a, plurality of circumferentially spaced inwardly directed projections or segment shaped tongues H which ar separated by segment shaped openings or recesses I8. The segment shaped tongues I'I separated by the openings or recesses I8 form a female unit of a. quick release connection adapted to removably receive a male unit of the quick release connection. The quick release connection is adapted to be formed between the female unit of the coupling body I3 and the male. unit which is formed on one end of a faucet, pipe or hose adaptor I9 with which the hose or pipe rilpple'4 is adapted to be aligned, with the joint contact surface I2 thereof in tight sealing engagement with a joint contact annular surface 20, which forms the end surface of a ring or annular flange 2| which is integrally formed on the outer end of the faucet adaptor I9.- The outer end of the faucet or pipe adaptor I9 is also constructed to form the male unit of a quick release connection to permit the male end of the adaptor I9 to be inserted into the open or coupling end of the coupling body I3. A plurality of segment shaped projections or tongues 22. are integrally formed in spaced relation around the periphery at one end of the adaptor I9 and project outwardly to formvthe male unit ofthe quick release connector. The mal unit tongues 22 are projected into the segment shaped openings or recesses I8 formed between the tongues of the coupler body II, to permit the male tongues 22 to project into the inner peripheral groove I6 of the coupling body and be engaged against the inner surfaces offthe projections or tongues II. By the rotative movement of either the coupling body I3 or the adaptor IS, the adaptor I9 is positioned in substantial alignment with the hose or pipe nipple 4 to position the contact surface '20 0f the adaptor ring 2I adjacent the contactsurface I2 of the nipple flange 5 in position ready to form a tight seal joint or annular surface-contact between the adaptor I9 and the nipple 4. V

The surface contact seal between the adaptor I9 and the nipple-4 is readily made by merely engaging the handles II and rotating the gland sleeve 8 within the threaded coupling sleeve I4, thereby causing the end surface of "the gland sleeve 8 to engage against the flang 5 of the ni ple 4 andat the same time cause inward movement ofthe coupling body I3 to cause the tongues H to tightly grip against the tongues 22. This rotative movement of the gland causes telescoping. movement of the gland and the coupling body with respect to one another thereby forcing the adaptor ring 2| and the nipple flange 5 into tight sealing engagement to form a tight leakproof seal between th surfaces I2 and 20.

When the male unit members or tongues 22 of the adaptor I9 are projected into the openings I8 of the coupling body I3, the rotation of the adaptor within the coupling body is limited by means of a stop pin 23 which is engaged through the end portion of one of the projections ortongues IT with the inner end of the stop pin securedf'or driven into the material forming the coupling body I3, as clearly illustrated in Figure 4. The stop pin 23 thus acts as a means for limiting the rotation of the faucet or pipe adaptor I9 so that the male tongues 22 are properly positioned in back of the tongues II forming part of the female connecting unit on the coupling body I3.

As clearly illustrated in Figures 3 and 4 the interior of thesupporting end of the adaptor I9 is internally threaded at 24 to permit the adaptor I9 to be threaded onto an externally threaded portion of a faucet or pipe 25.' The pipe member 25 may be the end of a. faucet such as utilized in connection with tank trucks for handling hot oil, hydrocarbons or other fluids. 'If desired, the ipe section 25 may be the end of a fill pipe of a storage tank to permit hot oil or other liquid from a, source of supply to be conducted through the flexible metal hose I and through the quick detachable and attachable coupling unit when the coupling unit is connected as illustrated in Figured to form 'aleak-proof seal joint.

When the coupling body I3'is removed from the faucet or pipe adaptor I9 the open end of the adaptor I9 may be quickly closed by means of a closure. cap of chambered; construction open at one end and closed atthe other. Integrallyfformed on the closed end of the-cap26' is an axiallypositioned outwardly projecting boss. or knob 21 having a stove bolt 28;securedaxially therein for supporting one -end ofa chain 29 anchored to the cap... Theother end of. the anchoringchain. 28 isvsecured to an eyefastened on thefaucetv adaptor was clearly illustrated in-Figure-Z.

The open end of the-removable cap 26 is provided. with integral. inwardly projecting segment shaped projections or tongues which are circumferentially spaced from one another by openings or recesses 3 I which are also segment shaped, as clearly illustrated in. Figure 5, to form a female unit for the receptionof the maleprojections ortongues 22 of the faucet orpipe adaptor l9. As clearly illustrated in. Figure 6, the projections or tongues 30 of the cap member 26 are deflected at one end to provide cam surfaces 32. on the tongues to permit the cap 26, when engaged on the outer end of the adaptor l9; to be tightly turned into place by the action of the cam surfaces. 32 of the tongues 30 against the tongues 2?. of the adaptor so that the contact surface 28 of the adaptor ring'ZI is brought into tight sealingengagement with the inner surface 33 of the cap 26 to form a tight seal between the adaptor land the cap 26, as clearly illustrated in Figure 3.

For the purpose of holding the cap 26 locked against removal from the faucet adaptor l9, the cap26' is provided with an opening 34' for the reception of the hasp of a padlock. The hasp of 'a'selected type of lock maybe inserted through the opening 34 whereby movement of the cap 251's prevented by'the movement of the padlock hasp into engagement with one of th'e'projections or tongues 22. The cap 25 cannot be rotated in an opposite direction for removal due to the cam or deflected shape of thetonguestfl.

Referring now to Figure 8, an internally threaded faucet or pipe adapter 35' isformed with a male connector consisting of outwardly directed segment shaped projections or tongues 35 which are circumferentially spaced from one another. The adaptor 351s providedwith an'annular contact ring 31 having a sealing surface 38 formed thereon.

For the purpose-of removably closing theouter end of the adaptor 35 a modified form of closure cap 39 is provided having a circular groove or opening 40 therein for the reception of'theouter end of the adaptor 35. Integrally formed on the closure cap 39" are inwardly directed segment shaped projections or tongues M which are spaced from one another and are deflected at oneend to-form camcontact surfaces similar to the cam surfaces 3201' the tongues 30 shownin Figure 6. The tongues 41 within the cap 39 have segment shaped openings or recesses-therebetweento form a female unit of a. connector to permit the'cap 39 tobe rotatably and. lockingly engagedon: the male connector end of' the adaptor 35..

When the cap 39 is engaged onthe outer end of the adaptor 35, atight seal is formed between the adaptor ring .3"! and the cap:by the contact of the seal surface 3.8 of the adaptorring 31. with a sealing surface 42v of a centrally apertured. disk gasket 43 of synthetic composition; The syntheticdisk gasket 43 'is'seated'iin: a suitable recess-formed within." the cap. 35tand: is held in place bymeans of. a.stove bolt 44 which projects through a lock washer 45 and a metal washer or" disk; 46,-: and: is threaded; into :the materiali. forming :thecap s 3.9;; Integrally formedroni the cap;.3.9 isza boss or. stud 41 having one: end Ofgflnr anchon chain 48: attached thereto bymeanszof a stove bolt 49:? The; otherzend-of the anchor-chain; 48 is secured to the exterior-of the adaptor- 3.5.

Figure, 9.illustrates awmodified form of; abuse orpipe-coupling connection including -?a modified form; of -quick attachable and: detachablezcouh plin gsunit used iniconnection with modified: forms, of. a hose-orpipernipple. and a faucet: or pipe. adaptor.

In. this modified formof; the construction thereferencenumeral 50 indicates a meta1.pipesec-- tion or nipple which, is-v externally. threadediat. 5t at one-end to facilitate connection to a hose or pipe by means of anysuitable-type of adaptor or. connector. The-nipple 5D'is provided with a peripheral groove for receiving a split spring; lock ring 52. Integrally formed on the opposite or second end of the nippleifl is a flange 53-e The flangede end of the nipple-50 m, chamfered or ground to provide a beveled:contact surface or seat54 against which a rounded annular contact edge 550i theadaptorring 31 is adapted to be pressed; to prov-idea tight, joint'or seal between. the nipple 50 and a faucet. or pipe adaptor 35.

The tight sealing. joint between the beveled: surface 54 and the; contact-edge 55 of thenipple- 50 and the adaptor35 respectively is. accomplished'. by; means; of a modified. forme oftquick. attachable--and detachable coupling. gland. 56" which is .similar to the r construction of the couplingillustratedin Figuresyl and 4-withthe ex-' i ceptionthat the rigid arms or handles l I are replaced by swinging or pivotal arms orhandles 51 which: are pivotally connected by means of rivets or pins 58to radially directed projections 59 which are-integrallyformed. on the gland sleeve 55. The coupling: body l3-is identicali to that. disclosed in Figures 1 and 4;

In the modified form of coupling assembly'illustrated in Figure 9, the gland 56-is rotated by means of the pivotal: handles 51 into a retracted position toward. thelock ring 52: thereby permittingthe. male member 'onltheadaptor 35 to be engaged inthe female member. of the coupling body l3-withrone of the-tongues36-of theadaptor 35in contact with thestoppin. 23, to properly position the male tonguestliv in proper position. inback of thefemale-tongues I T. In this con'-- struction the seal ring- 3'! of the adaptor 35 projects into the flangedzend of the nipple-50l Tocomplete the tight seal orjoint between the nipple 50 and the adaptor; 35: it is only necessary to 'rotatethe gland sleeve 56 bymeans of thepivoted handles. 5'1, to move the gland sleeve away-from the-lock ring-52 therebycausing a. movement of the sleeve 56 iand'the coupling hous ing' l3 toward each other to bring the rounded contact edge 5510f the adaptor 35 intotightsealing engagementwith the 'beveled' contact. surface 54 of the nipple '50'to 'rapi'dly complete the cou--. plingxandi establish: a tight seal joint between=the a'lignedinipple 50 andtheadaptor 35."

Figure loillustrates another modified form of couplingarrangement wherein two hose or pipe units are adapted" to be tightly connected in.

aligned relationship by a multiple arrangement of/imp'roved coupling units in combination-with a.- multiple; type. adaptor;

In the form of coupling arrangement shown in Figure 1.0;."the" pipe. nipples and-the improved coupling units-rareeidentical -withthose illustrated and described in connection with Figure 4, and

like parts are designated by corresponding reference numerals. The two pipe sections ornipples 4 are arrangedwith the flanged ends thereof positioned adjacent one another and separated by means of an improved multiple or double type adaptor or male unit for cooperation withthe female portions of a the coupling bodies l3.

The multiple or double type of male adaptor comprises a cylindrical body 60 having a central polygonal nut portion 6| to permit application of a wrench or other suitable tool to rotate the adaptor when assembling or disassembling 'a coupling connection. Integrally formed neareach end of the double adaptor body 60 are: a pluralit'y-of spaced outwardly projecting segment, shaped projections or tongues 62 to form male connecting members which are adapted to be projected through the openings l 8 of the respective coupling bodies. l3 after which the double adaptor 60 is rotated to position and engage the male tongues I2 in back of the female tongues ll of the coupling bodies I3. The rotation of the double adaptor 60 within the chambered ends of the coupling bodies' I3 is limited by means of the stop pins 23. Integrally formed on each end of the double adaptor body 60 is a ring or annular flange 63 having an annular contact surface 64 positioned adjacent the contact sur face I! of an adjacent nipple 4. r

With the multiple or double type adaptor 60 positioned between the flanges of the aligned hose orpipe' nipples 4 the coupling glands 8 are rotated by means of the handles ll intobpera-ting engagement with the coupling bodies l3, thereby causing the sealing or contact surfaces I! of the nipple flanges 5 to be brought into tight sealing non-leaking engagement with the annular contact surfaces 64 of the end flanges 63 to complete the coupling arrangement.

From the foregoing description it will be apparent that the'presentinvention provides an improvedtype of quick attachable and detachable couplin construction whereby a hose or pipe for the conduction'of hot oils or other liquids may be quickly coupled to the mouth of a faucet or to another hose; or pipe by merely removing the closure cap from the faucet adaptor and then engaging the female connector endof a coupling body over the maleconnecting end of the faucet adaptor and then rotating the coupling body a distance permitted by the stop pin therein to properly position the male tongues ofthe adaptor in back of the female tongues of the coupling body. The operation just'described properly positions the sealing or contact surfaces of the adaptor and the nipple in proper relation to permit a tight seal to be established by merely rotating the coupling gland by means of the handles so that the coupling members are moved inwardly over one another to tightly draw theadaptor and nipple together to establish the desired seal between the metal contact surfaces of the adaptor ring and the nipple flange.

The improved couplingis of a quick detachable type and may be readily disconnected by merely rotating the gland 8 outwardly with respect to the coupling body l3 to release the adaptor l9 permitting the same to be slightly a coupler'body, a compression sleeve therein, a

rotated and then removed from the inter-fitting nipple extending through the sleeve in rotatable and axially slidable relation thereto, and a disconnectable adapter arranged tobe pressed against th nipple to provide a sealing contact between adjacent surfaces of the nipple and the adapter, interengaging threads on the coupler body and the sleeve to aflord axial pressure action between the parts, a radially extending flange member on the inner end of the nipple and disposed over the inner endof the sleeve, a radiallyinwardly extending flange member on the coupler body having radial recesses therein, said adapter having a sealing part arranged for pressed sealing engagement with the flange of the nipple when the sleeve is screwed into the coupler body and radially extending. lugs arranged to be passed through said radialv relcesses in the coupler body and rotated for interlocking engagement .with said radiallyinwardly extending flange. a

2. Ina quick disconnect coupling assembly, a nipple having a sealing face on the inner end thereof, an adapter having a sealing face at 1 the inner, end thereof, said nipple and adapter comprising a sealed, liquid retainingcircuit when said sealing faces are pressed together, means for coupling said nipple and adapter in sealed relation including a couplerbody, and a threaded element arranged for threaded engagement with the coupler body and cooperating with the nip ple so as to force the nipple inwardly of the coupler body when the element is rotated relative to said body, radially outwardly extending members on said adapter, said members each having a plane surface on the outer side thereof, 3

a radially recessed flange on the couplerbody, said flange having a plane inner surface arranged to interlockingly-abut the respective plane surfaces on the said adapter members when the nipple and adapter are pressed to gether, and to afford release of said interlocking abutment immediately upon release of pressure between the nipple and theadapter.

3. In a quick disconnect coupling assembly, a

nipple having a sealing face on the inner end thereof, an adapter having a sealing face at the inner end thereof, said nipple and adapter comprising a sealed, liquid retaining circuit when said sealing faces are pressed together, means for coupling said nipple and adapter in sealed relation including a coupler body, and means arranged for axial engagement with the coupler body and for cooperatingwith the nipple to force the nipple inwardly of the coupler body when the said means is;. moved axially relative to said body, radially extending memberson said nipple, said members each having a plane surface on the outer side thereof, a radially recessed flange on the coupler body, said flange having a plane inner surface arranged to interlockingly abut the respective plane surfaces on the said adapter members when the nipple and adapter are pressed together, and to aifordrelease of said interlocking abutment immediately upon release of pressure between the nipple and the adapter. I

WILLIAM Ni GLAB. 

